1,3-Dioxolane, 2,4-dimethyl-2-(4-methyl-3-pentenyl)- 2,4-Dimethyl-2-(4-methyl-3-pentenyl)-1,3-dioxolane 2,4-Dimethyl-2-(4-methylpent-3-enyl)-1,3-dioxolane 68258-95-7 EINECS 269-499-2